Well-pump.



G. E. WHITE.

WELL PUMP. A APPucATloN FILED DE01. 1912.

L1 358,432. i l Patented May 4, 1915.

w/r/vEs'sEs uvm/TUR ,.0 Gegyrqe Edward Wh Hel l ATTORNEYS l g unire nur re- WELL-PUMP. Y c

aisance.

1o all/07mm 'it may concern Y Be it known that GEORGE YEDWARD ,VHITE, a citizen of the 'United States o-f America, and a resident of Gwelo, South Rhodesia, South Africa, `have invented a new and Improved l/Vell-Pump, of bwhich the following is a full, clear, and exact description. V

rThe invention is an improvement in pumps and has for its object-toprovide an inexpensive, simple and balanced pump.

To carry out the above said object I employ a pump having a reciprocating plunger actuated by a tubular rod having a valve controlled opening.

The invention consists of the construction and combination of parts to be more fully described hereinafter and fully set forth in the claims. i v

Reference is to be had to the accompanying drawings forming a part of this specieV lication, in which like characters indicate corresponding parts in all the views.

The drawings represent an elevated section of an embodiment of my invention.

Before proceeding to a more detailed description of my invention, it must be understood that while my pump is principally constructed for operation with a wind motor, the same may be used with a different motive power by a certain modification in parts without departing from the underlying spirit o-f the invention.

Referring to the drawing, 10 is a strainer positioned at the lower end of the suction pipe 11 extending from the suction casing 12, which is closed and flanged at the top; Another casing 13, flanged at both ends, is attached by means of bolts with its lower flanged end to the flanges of the casing 12. The casing 13 contains two cylinders 14 spaced from each other, open on both ends, and into which are fitted plungers 15. Engaging the casing 18 at both upper and lower flanges is the delivery casing 16 through which the liquid from the lower portion of the well is raised by means of the plungers to the dered place.

rEhe top of the suction casing 12 is provided with valve controlled openings 17, lying preferably in the axes of the cylinders 14;, and the valve 18, controlling the openings in each cylinder, is caged by means of a cage member 19 bolted to the top of the suction casing k12 and projecting into the cylinder 14. The plungers 15 reciprocating in Specification of Letters Patent. i Application filed December 7, 1912.

' for each plunger,

lvalves 25 at the upper y `the length of the displacement of the Patented May 4, 1915.. semi No. 735,408.

the cylinders 14 are, near their lower ends, provided with packing rings 20 and a valvecontrolled orifice 21. A valve 22 is provided controlling the orifice 21, and caged to prevent excessive displacement of theV valve 22 during the flow of the liquid through the opening `21 of the plunger. r1`he plungers are also provided with a passage 23 leading from the valve controlled opening 21 to the lateral surface of the plunger; the cross section of the passage being such that at any particular place its cross-sectional area is not less than the cross section of the valve controlled opening 21,

and preferably substantiallyV equal to same.

The upper portion of the plunger 15 is provided with a tubular rod 23 integrally formed with the plunger or in any other'wayT rigidly connected to the same. The tubular rods 23 are each provided with a valve controlled opening 241- near ger 15. The opening 24 vis controlled by a valve 25 mounted on a pivot 26 projecting through the lateral surface of the tubular rod 28 near the opening 24 and lying in a plane norn al to the axis of the' opening. rlhe projecting Aends of the pivot 26 are rigidly attached to a yoke member 27, so that by moving the yoke 27 the valve 25 may be displaced aboutjits axis, which is the pivot 26. The delivery casing 16 is on its lateral surface provided with set screws 28 adapted to engage the yoke 27 controlling the valve 25 of the opening 211, that is, operating the plunger.

The operation of the pump is as follows: During the upward displacement of the right-hand plunger the valve 25 of the tubular rod 28 is open and the liquid inclcsed in the tubular rod communicates with the liquid inclosed in the delivery casing. The valve 22 in this plunger will seat itself on the valve seat and close the opening 21, thereby ycreating a vacuum in the right ctvlinder 14 and the liquid from the well will,

consequently, raise the valve 18 controlling the opening 17 into this cylinder, and the same will be filled when the right-hand plunger reaches its uppermost point. During this upward motion of the right-hand plunger the liquid in the delivery casing and the tubular rod are continuously communicating. When the right-hand plunger reaches its uppermost position the yoke 27 comes in,

the top of the plunand lower points of contact with the set screw 28 and closes the valve opening 241 by means of the valve 25, thereby severing the communication between the tubular space in rod 23 and the delivery casing 16. During the same time, the lefthand plungerl is going downward with its opening 2a of the tubular rod 23 closed. The liquid inclosed in the left-hand cylinder 14, due to the downward motion of the plunger, raises the valve 22 in the plunger and passes through the passage 23, entering the delivery casing 16. The valve 25 of the tubular rod 23 remains closed until about the lowermost position of the plunger, when it is opened by the lower set screw 28 engaging the yoke 27' and thereby displacing the valve 25 and establishing communication between this tubular space of the rod 23 and the delivery casing. y

While the drawing discloses a. special construction or' a valve for the opening 24: in the tubular rod 23', any suitable valve may be used for the purpose. The compound construction of the pump as shown in drawing gives a continuous ilow of liquid from the well and is better balanced.

Having thus described my invention, what I claim and desire to secure by Letters Patent is: c

1. A well pump comprising a cylinder; a delivery casing above said cylinder, said cylinder having a valve-controlled inlet; a plunger in said cylinder having a valve-controlled outlet from said cylinder to said delivery casing; a tubular rod in said casing for reciprocating said plunger, having an opening and a valve to control said opening; and means on said delivery casing adapted to operate said valve in saidl rod at predetermined points, ing the communication between said deliv ery casings and said tubular rod.

2. A well pump comprising, a casing, a

Copies of this patent may be obtained for thereby establishing or sever pair of cylinders each having a valve-controlled inlet in said casing; a delivery casing above said casing Jfor both' of said cylinders; a plunger in each of said cylinders having a vante-controlled outlet from said cylinders to said delivery casing; a tubular rod for `each of the said plungers in said deliveryr casing and substantially parallel to it, each of said tubular rods having an opening and a valve to control said opening; and means on said deli\fery casing adapted to operate each of said valves in said tubular rod when said rods reach substantially the end of their up and down stroke. f f

3. A well pump comprising, a cylinder having a valve-controlled inlet; a delivery casing for the cylinder and above same; a plunger in said cylinder having a valve-controlled outlet frein said cylinder to said delivery casing and a tubular rod associated with said plunger, said tubular rod having an opening near the top of said plunger establishing communication between said tubular'rod and said delivery casing; a valve 'for said opening; a pivot secured to said valve and projecting through said tubular rod and a yoke rigidly secured to the projecting ends of said pivot by means of which said valve could be operated, and thereby control the opening in said tubular rod; and means at predetermined points on the lateral surface of said delivery casing adapted to engage saidyoke during the reciprocation of said tubular rod, thereby controlling the communication between said tubular rod and said delivery casing.

In testimony whereoi:l l have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE EDWARD VHITE.

Vitnesses:

BENEDICT J Arrn, PI-Iimr D. RoLLi-IAUs.

five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

